4232640 has 56 divisors (see below), whose sum is σ = 13441680. Its totient is φ = 1128448.

The previous prime is 4232629. The next prime is 4232651. The reversal of 4232640 is 462324.

It is an interprime number because it is at equal distance from previous prime (4232629) and next prime (4232651).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1245 + ... + 3164.

It is an arithmetic number, because the mean of its divisors is an integer number (240030).

Almost surely, 2^4232640 is an apocalyptic number.

4232640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4232640 is an abundant number, since it is smaller than the sum of its proper divisors (9209040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4232640 is a wasteful number, since it uses less digits than its factorization.

4232640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4429 (or 4419 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 4232640 is about 2057.3380859742. The cubic root of 4232640 is about 161.7597414001.

Adding to 4232640 its reverse (462324), we get a palindrome (4694964).

The spelling of 4232640 in words is "four million, two hundred thirty-two thousand, six hundred forty".